Kulinich, G. L., and S. V. Kushnirenko. “On the Stabilization of a Solution of the Cauchy Problem for One Class of Integro-Differential Equations”. Ukrains’kyi Matematychnyi Zhurnal, Vol. 56, no. 12, Dec. 2004, pp. 1699 -, https://umj.imath.kiev.ua/index.php/umj/article/view/3877.